#region License
/* Copyright (c) 2011 Maksymilian Mulawa
	
Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright notice, 
 * this list of conditions and the following disclaimer.
   2. Redistributions in binary form must reproduce the above copyright notice, 
 * this list of conditions and the following disclaimer in the documentation 
 * and/or other materials provided with the distribution.
   3. The name of the author may not be used to endorse or promote products 
 * derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#endregion
using System;
using System.Data;

namespace ReplicationExplorer.Repositories
{
    public class DataReaderHelper
    {
        public static int? ReadInt(IDataReader reader, string fieldName)
        {
            int? result = null;
            if(!Convert.IsDBNull(reader[fieldName]))
            {
                result = (int) reader[fieldName];
            }

            return result;
        }

        public static DateTime? ReadDateTime(IDataReader reader, string fieldName)
        {
            DateTime? result = null;
            if (!Convert.IsDBNull(reader[fieldName]))
            {
                result = (DateTime) reader[fieldName];
            }

            return result;
        }

        public static string ReadStrting(IDataReader reader, string fieldName)
        {
            string result = null;
            if (!Convert.IsDBNull(reader[fieldName]))
            {
                result = (string)reader[fieldName];
            }

            return result;
        }

        public static bool? ReadBool(IDataReader reader, string fieldName)
        {
            bool? result = null;
            if (!Convert.IsDBNull(reader[fieldName]))
            {
                result = (bool)reader[fieldName];
            }

            return result;
        }
    }
}